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74LCX27 Low Voltage Triple 3-Input NOR Gate with 5V Tolerant Inputs

February 2001

Revised February 2001

74LCX27

Low Voltage Triple 3-Input NOR Gate

with 5V Tolerant Inputs

General Description

The LCX27 contains three 3-input NOR gates. The inputs

tolerate voltages up to 7V allowing the interface of 5V sys-

tems to 3V systems.

The 74LCX27 is fabricated with advanced CMOS technol-

ogy to achieve high speed operation while maintaining

CMOS low power dissipation.

Features

s

5V tolerant inputs

s

2.3V鈥?.6V V

CC

specifications provided

s

4.9 ns t

PD

max (V

CC

=

3.3V), 10

碌

A I

CC

max

s

Power down high impedance inputs and outputs

s

鹵

24 mA output drive (V

CC

=

3.0V)

s

Implements patented noise/EMI reduction circuitry

s

Latch-up performance exceeds 500 mA

s

ESD performance:

Human body model

>

2000V

Machine model

>

200V

Ordering Code:

Order Number

74LCX27M

74LCX27SJ

74LCX27MTC

Package Number

M14A

M14D

MTC14

Package Description

14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow

14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.

Logic Symbol

IEEE/IEC

Connection Diagram

Pin Descriptions

Pin Names

A

n

, B

n

, C

n

O

n

Description

Inputs

Outputs

Truth Table

O

n

=

A

n

+

B

n

+

C

n

Inputs

A

n

H

X

X

L

H

=

HIGH Voltage Level

Output

C

n

X

X

H

L

O

n

L

L

L

H

X

=

Immaterial

B

n

X

H

X

L

L

=

LOW Voltage Level

漏 2001 Fairchild Semiconductor Corporation

DS500454

www.fairchildsemi.com

next

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